142750249 has 4 divisors (see below), whose sum is σ = 150263440. Its totient is φ = 135237060.

The previous prime is 142750199. The next prime is 142750261. The reversal of 142750249 is 942057241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142750249 - 2¹⁵ = 142717481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142750549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756567 + ... + 3756604.

It is an arithmetic number, because the mean of its divisors is an integer number (37565860).

Almost surely, 2^142750249 is an apocalyptic number.

142750249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

142750249 is a deficient number, since it is larger than the sum of its proper divisors (7513191).

142750249 is an equidigital number, since it uses as much as digits as its factorization.

142750249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513190.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 142750249 is about 11947.8135656697. The cubic root of 142750249 is about 522.6275402732.

The spelling of 142750249 in words is "one hundred forty-two million, seven hundred fifty thousand, two hundred forty-nine".